EP 3219026 B1 20191225 - FREQUENCY DIVISION DUPLEX (FDD) MASSIVE MIMO BACKHAUL FOR REPEATER SMALL CELLS
Title (en)
FREQUENCY DIVISION DUPLEX (FDD) MASSIVE MIMO BACKHAUL FOR REPEATER SMALL CELLS
Title (de)
MASSIVES MIMO-BACKHAUL-SYSTEM DURCH FREQUENZDUPLEX (FDD) FÜR REPEATER-KLEINZELLEN
Title (fr)
LIAISON TERRESTRE MIMO MASSIVE PAR DUPLEX À RÉPARTITION EN FRÉQUENCE (FDD) DESTINÉE À DES PETITES CELLULES DE RÉPÉTEUR
Publication
Application
Priority
- US 201414539396 A 20141112
- IB 2015002245 W 20151106
Abstract (en)
[origin: US2016134438A1] In a method for transmitting data through a Massive MIMO backhaul system, a central node of the MIMO backhaul system transmits, to a small cell repeater terminal on the downlink, a downlink pilot signal carrying a set of pilot sequences that are mutually orthogonal in the frequency domain. Each pilot sequence in the set of pilot sequences corresponds to an antenna of an antenna array at the central node. The central node receives an uplink pilot signal carrying the set of pilot sequences transmitted by the small cell repeater terminal on the uplink, where the received uplink pilot signal is a frequency converted retransmission of the downlink pilot signal. The central node estimates at least one of an uplink channel and a downlink channel between the central node and the small cell repeater terminal based on the set of pilot sequences and the received uplink pilot signal.
IPC 8 full level
H04B 7/155 (2006.01)
CPC (source: CN EP US)
H04B 7/0413 (2013.01 - CN); H04B 7/155 (2013.01 - CN); H04B 7/15528 (2013.01 - CN); H04L 5/0048 (2013.01 - CN US); H04L 25/0204 (2013.01 - EP US); H04L 25/0228 (2013.01 - EP US); H04L 25/0242 (2013.01 - CN)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
US 2016134438 A1 20160512; US 9768983 B2 20170919; CN 107113052 A 20170829; CN 107113052 B 20210202; EP 3219026 A1 20170920; EP 3219026 B1 20191225; WO 2016075537 A1 20160519
DOCDB simple family (application)
US 201414539396 A 20141112; CN 201580061325 A 20151106; EP 15816511 A 20151106; IB 2015002245 W 20151106